51289274 has 8 divisors (see below), whose sum is σ = 76983060. Its totient is φ = 25628256.

The previous prime is 51289243. The next prime is 51289297. The reversal of 51289274 is 47298215.

It can be written as a sum of positive squares in 2 ways, for example, as 40233649 + 11055625 = 6343^2 + 3325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3809 + ... + 10820.

Almost surely, 2^51289274 is an apocalyptic number.

51289274 is a deficient number, since it is larger than the sum of its proper divisors (25693786).

51289274 is a wasteful number, since it uses less digits than its factorization.

51289274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16384.

The product of its digits is 40320, while the sum is 38.

The square root of 51289274 is about 7161.6530214749. The cubic root of 51289274 is about 371.5428007496.

The spelling of 51289274 in words is "fifty-one million, two hundred eighty-nine thousand, two hundred seventy-four".